<html>
	<head>
		<title>双搜</title>
		<meta charset="UTF-8"/>
		<title>哈哈</title>
		<style type="text/css">
			
			#showdiv{
				margin: auto;
				margin-top: 150px;
				width: 400px;
				margin-bottom: 20px;
			}
			
			
		</style>
		<script type="text/javascript">
			
			function test(){
				var search=document.getElementById("search").value;
				document.getElementById("wd").value=search;
				document.getElementById("q").value=search;
				
				document.getElementById("fmB").submit();
				document.getElementById("fmS").submit();
				
				//将隐藏的div显示出来
					document.getElementById("div01").style.display="";
				
			}
			
			alert(document.getElementsByTagName("title"));
			
		</script>
	</head>
	<body>
		<div id="showdiv">
			<input type="text" name="" id="search" value="" />
			<input type="button" name="" id="" value="牛逼一下" onclick="test()"/>
		</div>
		<hr />
		<form action="http://www.baidu.com/s" method="get" id="fmB" target="ifB">
			<input type="hidden" name="wd" id="wd" value="" />
		</form>
		<form action="http://www.so.com/s" method="get" id="fmS" target="ifS">
			<input type="hidden" name="q" id="q" value="" />
		</form>
		<!--声明iframe-->
		<div id="div01" style="display: none;">
			<iframe src="" width="49%" height="500px" name="ifB"></iframe>
			<iframe src="" width="49%" height="500px" name="ifS"></iframe>
		</div>
			
	</body>
</html>